I've always been skeptical of dermatologist insistence that sun exposure is unequivocally bad. It never made sense. If human health and lifespan were so negatively affected by sunlight, we would all be covered in fur, or everyone would be as dark skinned as populations living near the equator. Like everything else in life, "moderation in all things" is the best rule to follow. If you spend your life getting deep dark…
> If human health and lifespan were so negatively affected by sunlight, we would all be covered in fur or dark skinned Evolution doesn't work like that, as long as you procreate you may die at 40 or 120 and genes would not care. Probably a lot more important to get vitamin d from the sun by reducing skin pigmentation when you live near the poles (getting stronger bones and muscles) than slightly reducing your chances…
evolution doesn’t work like this, either: lifespan can well be selected for on grounds of communal care/ altruism.